采用弹粘塑性力学模型，对扩展裂纹尖端的应力和应变场进行了渐近分析。
An elastic_viscoplastic model is adopted to investigate asymptotically the stress and strain fields at a propagating crack_tip.
分析了不可压缩刚粘塑性圆轴扭转和拉伸的组合变形。
The combined deformation due to torsion and tension of incompressible rigid viscoplastic circular shafts is analyzed.
利用流变介质模型，分析软岩立并并壁与粘弹塑性围岩的相互作用。
The rheologic model has been used to analyze the interaction between shaft wall and viscoelasticviscoplastic surrounding rock in soft rock stratum.
通过计算瞬时应变的大小与屈服限建立粘弹性变形和粘塑性变形的判断准则。
Under the instantaneous strain and yield limit calculated, judgement rule about viscoelastic and viscoplastic is established.
首次采用间隙元法求解金属圆管在爆炸焊接时的二维弹粘塑性大变形的接触问题，对圆管内包爆炸焊接的全过程作了详细分析。
The gap element method is used to analyse two-dimensional elastoviscoplastic contact problem of circular tubes under explosive welding for the first time.
在此基础上，本文首次采用弹-粘塑性边界元法并结合锚喷支护考虑了隧洞掘进面时空效应作用问题，从而拓展了边界单元法的工程应用。
Based on the above work a space-time effect on the excavation face of tunnel with the function of bolting support is considered, thus the engineering application of BEM is developed.
针对四种不同的粘塑性、超塑性模型，确定有限元列式中各力学变量间的关系，并编制了相应的计算程序。
Finite element formulations for four viscoplastic and superplastic constitutive models are derived respectively and corresponding FORTRAN codes are written.
掺入粉煤灰将增大混凝土的粘聚性和可塑性，改善混凝土的和易性，减小混凝土的膨胀性。
Chesion and plasticity of steel slag concrete is increased, its fluidity is improved and expansibility is decreased owing to addition of fly ash.
所研制的用于岩土工程问题的弹—粘塑性有限元程序，可供实际工程使用。
The FEM program given for solving elastoviscoplastic problems in rock engineering can be applied to practical projects.
本文利用弹-粘-塑性材料力学模型，对动态扩展裂纹尖端的指数奇异性和对数奇异性进行了渐近分析。
An elastic viscoplastic material model was adopted to the asymptotic analysis on power law and logarithmic singularity of dynamic growing crack tip.
用广义开尔文模型和宾汉姆模型来分别模拟土的粘弹和粘塑性状。
Generalized Kelvin model and Bingham model are proposed to simulate the viscoelastic and viscoplastic behaviour of soil respectively.
本文根据土的室内蠕变试验提出了一项分析土的弹粘塑性应力—应变关系的方法。
Based on laboratory creep tests of soils, the method for analyzing the elastic-viscoplastic stress-strain relations are presented in this paper.
经典塑性本构关系、多屈服面本构关系及过应力型粘塑性本构关系只是本文的特例。
The classic plastic constitutive relation, multi-yield surface constitutive relation and over-stress viscoplastic constitutive relation are a special example of this constitutive relation.
本文的研究拓宽了刚粘塑性有限元及数值模拟技术的应用范围。
It is also an extension for the application of rigid viscoplastic finite element method and numerical simulation.
采用刚粘塑性动力有限元模拟环轧动态过程，获得轧制过程中的分布量计算结果。
First, the paper presents the simulation of ring rolling processes by rigid-viscoplastic dynamic finite element method and the H-RING code.
弹性-粘塑性模型对反平面剪切扩展裂纹尖端的应力应变场进行了分析。
An elastic viscoplastic model is used to analyse stress and strain fields at the tip of a propagating crack under antiplane shear.
本文提出可利用粘塑性理论解决超塑性变形的力学问题。
The viscoplasticity theory is suggested to be available to analyze the mechanical behavior of superplastic deformation.
利用弹塑性介质的不可逆热力学的普遍关系，对弹粘塑性孔隙介质在冲击静水压力作用下的力学行为进行了研究。
The mechanical behaviors of elastoviscoplastic porous media subjected to hydrostatic shock are studied here in the framework of irreversible thermodynamics of elastoviscoplastic media.
提出了一个新的粘塑性介质中球形孔洞在高加载率作用下的演化方程。
A new evolution equation of growth of spherical voids in viscoplastic medium un-der dynamic tensile loading is presented in this paper.
将粘弹塑性统一本构理论引入程序中，同时采用了已经比较成熟的破坏准则和裂缝模型。
In this program the author adopt the viscoelastic-plastic unified constitutive theory, at the same time adopting the Kupfer-Gerstle destroy rule and mixed crack model.
在晶体滑移系上引入与材料即时响应有关的塑性阻尼器及与材料粘性有关的牛顿阻尼器以计及材料滑移系的粘塑性特性。
Plastic dashpots reflecting the material transient response and Newton dashpots mirroring the material viscosity are introduced to describe the viscoplasticity of slip systems.
将ANAND粘塑性本构关系引入到焊后热处理消除残余应力的有限元计算中。
ANAND viscoplastic constitutive equation was introduced into the FE model for calculation of the reduction of welding residual stresses during the post weld heat treatment.
本文采用粘弹塑性模型，提出计算地基变形及有效压缩层深度的新方法。
This paper presents a new method of calculating depth of compressible stratum, in which a viscoelastic-plastic model was adopted.
采用上限方法，给出了多孔粘塑性材料正交流动法则存在的条件。
And, taking terms of an upper bounded approach, the existence condition for a normal flow regulation is obtained for the voided viscoplastic material.
采用塑性变形理论和刚粘塑性材料模型研究了直流电阻对焊接头的塑性变形。
The joint deformation of DC upset butt welding was studied by using theory of plastic deformation and rigid-viscosity plastic material model.
对对称三杆桁架承受载荷后的弹粘塑性平衡问题进行了分析。
The viscoplastic balance of a symmetric three-bar truss supporting the load has been analyzed.
本文采用直接边界元法，研究了土的弹塑性、粘塑性（含蠕变）及温度应力等非弹性状的边界积分方程求解摸式。
With direct B. E. M. the boundary integral equations of soil for elastoplasticity, viscoplasticity cluding creep and temperature stress are researched and soluted.
运用材料的粘塑性本构方程建立了新的切削动力学模型及其传递函数，并给出了材料粘性系数表达式。
A new cutting dynamic model and its transfer function as well as the formula of the viscous coefficient are established in the overstress constitutive equation.
应用粘弹塑性力学和岩石力学理论，详细讨论了粘弹性岩石井眼的应力和位移。
The stress and displacement of wellbore with viscoelastic rock are discussed in detail by using viscoelastic-plasticity mechanics and rock mechanics theory.
应用粘弹塑性力学和岩石力学理论，详细讨论了粘弹性岩石井眼的应力和位移。
The stress and displacement of wellbore with viscoelastic rock are discussed in detail by using viscoelastic-plasticity mechanics and rock mechanics theory.
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